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Norwegian rocket incident

Norwegian rocket incident is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Norwegian rocket incident rather than just read about it. In short: On January 25, 1995, a team of Norwegian and American scientists launched a Black Brant XII four-stage sounding rocket from the Andøya Rocket Range off the northwestern coast of Norway. The rocket carried scientific equipment to study the aurora borealis over Svalbard, and flew on a high northbound trajectory, which included an air corridor that stretches from Minuteman III nuclear missile silos in North Dakota all…

Norwegian rocket incident — main illustration
Norwegian rocket incident — illustration

Key takeaways

  • Norwegian rocket incident belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Norwegian rocket incident to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Norwegian rocket incident from memory before moving on to harder problems.

Reference excerpt

On January 25, 1995, a team of Norwegian and American scientists launched a Black Brant XII four-stage sounding rocket from the Andøya Rocket Range off the northwestern coast of Norway. The rocket carried scientific equipment to study the aurora borealis over Svalbard, and flew on a high northbound trajectory, which included an air corridor that stretches from Minuteman III nuclear missile silos in North Dakota all the way to Moscow, the capital city of Russia. The rocket eventually reached an altitude of 1,453 kilometers (903 mi), resembling a US Navy submarine-launched Trident missile. Fearing a high-altitude nuclear attack that could blind Russian radar, Russian nuclear forces went on high alert, and the "nuclear briefcase" (the Cheget) was taken to Russian president Boris Yeltsin, who then had to decide whether to launch a retaliatory nuclear strike against the United States. Russian observers determined that there was no nuclear attack and no retaliation was ordered. The Norwegian rocket incident was a few minutes of post-Cold War nuclear tension that took place nearly four years after the end of the Cold War. While not as well known an incident as the Cuban Missile Crisis of October 1962 (nor the 1983 Soviet nuclear false alarm incident, which was still classified at the time), the 1995 incident is considered to be one of the most severe incidents. The 1995 incident happened quickly, and occurred at a time where many Russians, especially in the military, were still very suspicious of the United States and NATO. In contrast, the Cuban Missile Crisis of October 1962 had a much longer build-up.

Detection As the Black Brant XII rocket gained altitude, it was detected by the Olenegorsk early-warning radar station in Murmansk Oblast. To the radar operators, the rocket appeared similar in speed and flight pattern to a US Navy submarine-launched Trident missile, leading the Russian military to initially misinterpret the rocket's trajectory as representing the precursor to a possible attack by missiles from submarines.

EMP missile scenario One possibility was that the rocket had been a solitary missile with a radar-blocking electromagnetic pulse (EMP) payload launched from a Trident missile at sea in order to blind Russian radars in the first stage of a surprise attack. In this scenario, gamma rays from a high-altitude nuclear detonation would create a very high-intensity electromagnetic pulse that would confuse radars and incapacitate electronic equipment and telecommunications. After that, according to the scenario, the main attack would start.

Post-staging After stage separation, the rocket launch appeared on radar similar to Multiple Reentry vehicles (MRVs); the Russian control center did not immediately realize that the Norwegian scientific rocket was headed out to sea, rather than toward Russia. Tracking the trajectory took 8 of the 10 minutes allotted to the process of deciding whether to launch a nuclear response to an impending attack; a submarine-launched Trident missile from the Barents Sea would be able to reach mainland Russia in 10 minutes.

Response This event resulted in a full alert being passed up through the military chain of command all the way to President Boris Yeltsin, who was notified and the "nuclear briefcase" used to authorize nuclear launch was automatically activated. Yeltsin activated his "nuclear keys" for the first time. No warning was issued to the Russian populace of any incident; it was reported in the news a week afterward. As a result of the alert, Russian submarine commanders were ordered to go into a state of combat readiness and prepare for nuclear retaliation. Soon thereafter, Russian observers were able to determine that the rocket was heading away from Russian airspace and was not a threat. The rocket fell to earth as planned, near Spitsbergen, 24 minutes after launch. The Norwegian rocket incident was the first and thus far only known incident where any nuclear-weapons state had its nuclear briefcase activated and prepared for launching an attack.

Prior notification The Norwegian and American scientists had notified thirty countries, including Russia, of their intention to launch a high-altitude scientific experiment aboard a rocket; however, the information was not passed on to the radar technicians. The launch was notified in good time to the Russian Ministry of Foreign Affairs. However, due to an error on the part of the Russian Foreign Ministry, the notification was never given to the Russian General Staff, or any part of the Russian military. An anonymous Russian general later told the press that the wording of Norway's missile launch message to "notify the upcoming launch of a meteorological rocket to sea-farers" was taken too literally by Russian bureaucrats. "Foreign Ministry officials took a literal attitude toward that request: sailors knew of the event. Not the military." Following the incident, notification and disclosure protocols were re-evaluated and redesigned.

See also List of nuclear close calls Able Archer 83 Dr. Strangelove

References

Further reading Forden, Geoffrey. "Reducing a Common Danger." Policy Analysis Paper (CATO #399, 2001) online

External links Hoffman, David (March 15, 1998). "Cold-War Doctrines Refuse to Die". The Washington Post. p. A01. Retrieved August 10, 2010. A Close Call, the Norwegian Rocket Incident False Alarms on the Nuclear Front This Day in History description of the event

Illustrations

Norwegian rocket incident illustration

Worked examples

Example 1 — a first encounter with Norwegian rocket incident

Start with the simplest possible case. Write down what Norwegian rocket incident claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Norwegian rocket incident before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Norwegian rocket incident ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Norwegian rocket incident

In research
Norwegian rocket incident appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Norwegian rocket incident in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Norwegian rocket incident is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1995 in Norway, 1995 in Russia, 1995 in international relations, so understanding it makes those chapters shorter.
In everyday life
Look for Norwegian rocket incident outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Norwegian rocket incident in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Norwegian rocket incident means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Norwegian rocket incident out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Norwegian rocket incident in simple terms?

On January 25, 1995, a team of Norwegian and American scientists launched a Black Brant XII four-stage sounding rocket from the Andøya Rocket Range off the northwestern coast of Norway. The rocket carried scientific equipment to study the aurora borealis over Svalbard, and flew on a high northbound…

Why does Norwegian rocket incident matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Norwegian rocket incident?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Norwegian rocket incident.

Tags

  • 1995 in Norway
  • 1995 in Russia
  • 1995 in international relations
  • Diplomatic crises of the 1990s
  • January 1995 in Europe
  • Military nuclear accidents and incidents
  • Norway–Russia relations
  • Norway–United States relations
  • Russia–United States relations
  • United States military controversies
  • War scare

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